HP proliant bl685c g5 ユーザーズマニュアル

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Appendix C – SBC solution sizing  
As with any laboratory benchmark, the performance metrics quoted in this performance brief are 
idealized. In a production environment, these metrics may be impacted by a variety of factors, 
including the following: 
• 
Overhead 
Agents and services (virus scanning, backup and restore, provisioning, security, management and 
more) automatically consume overhead. Rogue applications can consume additional overhead. 
The system architect may wish to provide a 25% – 30% buffer to accommodate this overhead.  
• 
Future growth 
To accommodate future growth, the system architect may wish to provide an additional buffer. 
Alternatively, servers can be added as needed, taking advantage of the server farm’s inherent 
ability to scale out.  
• 
User profiles 
The particular application in use directly impacts the number of users supported by a particular 
server. Further, user behavior can also impact scalability:  
–  Increased typing rates correspond to fewer users. 
–  Opening and closing applications (rather than switching between them) or moving quickly 
between tasks can place a heavier load on the server. 
–  For accurate sizing, system architects should closely match their user profiles with the Heavy, 
Medium, and Light User profiles specified by HP in
. If the profiles do not match, more 
are available using the online sizer tool (described below); alternatively, the system architect 
can consult 
• 
Background grammar checking 
Background grammar checking can significantly impact scalability, reducing the number of users 
supported by as much as 50%. HP disabled background grammar checking for the testing 
described in this performance brief. 
Online sizer tool 
To minimize risk, HP offers automated, online tools that can help the customer size an HP SBC 
solution. The algorithms and methodology used by the sizer are based on the results of customer 
surveys and thorough testing.  
 is available for enterprise and small and medium business (SMB) environments. 
Figure C-1 shows a typical HP SBC sizer screen.  
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